Al=>Al2O3=>AlCl3=>Al(OH)3=>NaAl(OH)4

Question

Al=>Al2O3=>AlCl3=>Al(OH)3=>NaAl(OH)4

Answer 1

4Al + 3O2 = 2Al2O3
Al2O3 + 6HCl = 2AlCl3 + 3H2O
AlCl3 + 3NaOH = Al(OH)3 + 3NaCl
Al(OH)3 + NaOH = Na[Al(OH)4]